Sean Gallup/Life Ball 2013/Getty Images(VIENNA) -- With her trademark head nod and wink, I Dream of Jeannie star Barbara Eden was back in business.

The 78-year-old star of the 1960s sitcom rocked her character’s iconic pink crop top, harem pants and braided up-do, to the delight of attendees at the Life Ball in Vienna.

Eden, who packed up her Jeannie costume in 1970 after the show ended a five-season run, showed off her toned midriff as she appeared onstage next to President Bill Clinton and mingled with other celebrities, including Sir Elton John, Olympic diver Greg Louganis and Fergie.

The Life Ball is billed as Europe’s biggest charity event and raises money to promote HIV and AIDS awareness.